Drilling-machine.



PATENTED JUNE 7, 1904. W. HOLSTINE. DRILLING MACHINE.

APPLICATION FILED FEB. 21, 1903.

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No. 762,169. PATENTED JUNE 7, 1904. W. HOLSTINB.

DRILLING MACHINE.

APPLICATION FILED FEB. 21, 1903.

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Patented June 7, 1904.v

PATENT OFFICE.

VILLIAM HOLSTINE, OF STONE, WEST VIRGINIA.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 762,169, dated June 7',1904.

Application filed February 21, 1903. Serial No. 144,364:- (No model.)

To all whom it may concern:

Be it known that I, WVILLIAM HOLSTINE, a citizen of the United States,residing at Stone, in the county of Fayette and State of West Virginia,have invented new and useful Improvements in Drilling-Machines, of whichthe following is a specification.

This invention relates to drilling-machines, but more particularly to amachine which can be efficiently operated for mining minerals, such ascoal, slate, stone, 620.

One of the principal objects of the invention is to produce a machine ofthis character possessing the advantageous features of accuracy and easeof manipulation.

Another object is to provide aportable drill which will possess all ofthe advantages usually found in the best type of machines of thischaracter.

consists in providing a supporting or supplemental frame for thedrill-frame having certain novel adjustments which permit the drill- 5frame to accommodate itself to varying thicknesses of material to bedrilled.

The invention further consists in providing a drill-frame of twosections which act as clamps for holding the operating mechanism p inproper relative position.

The invention further consists in arranging the drill-frame and swingingsupports on the supporting or secondary frame so that the drill can beoperated at any angle.

The manner of operating the drill, as well as the various positions ofadjustment of which the drill-frame is susceptible, will be specificallyset forth hereinafter and the novel features will be defined in theappended claims.

In the drawings, Figure 1 is afront elevation tional view through themachine on the line 4 4 one of the side bars'of the frame 1.

frame consists of two sections, one of which is approximatelyrectangular, being formed with horizontal end bars connected by verticalside bars. This section is designated by the reference-numerall, andformed with the opposite side bars are oppositely-disposed tubularbearings 2 and 3, which carry shafts 4and 5, extending therethrough. Onthe inner ends I of the respective shafts 4 and 5 are beveled gears 6and 7, which mesh with a h orizontallyarranged beveled gear 8, formedwith a central opening, on the edge of which is a feather With theseobjects in view the invention or spline 9, which works in the verticalgroove 10 of the threaded auger-rod 11. The second member of the framecomprises two hinged bars 12 and 13, which are connected by a verticalbar 14, alining or coinciding with These bars 12 and 13 are hinged tothe opposite bar by a vertically-extending rod or pintle 15, whichprojects through the lugs16 on the frame 1 and through the ends of thebars 12 and 13. ,The end bars of the two frame-sections are formed withalining semicircular concave portions or grooves 17 and 18, which arethreaded internally, so that when the two frame-sections are broughttogether and fastened by the catch 19 alining internallythreadedguide-openings are formed for the vertically-adjustable bit-rod 11. Itwill be noticed that the vertical or side bars of the frame 1 are cutaway near their extremities to form seats or rabbets 20 and 21 toreceive the transverse bars 12 and 13 of the second frame-section. Byproviding such astructure the two sections can be rigidly fastened toeach other, so as to form firm bearings for the gearing-shafts when allthe parts are properly assembled.

Inasmuch as a drill of the character invented by me is required toperform its work under varying conditions, generally to the unequaldepths or thicknesses of the stone, it is and 29, which pass through thearms near necessary to provide an adjustable supporting means for themechanism, whereby the drillframe and its appurtenances can beadjustably supported to accommodate the drill to the particularcondition existing at the time of its operation. The device foreffecting this resultis termed a supporting-frame. This frame is formedby securing two parallel vertically-arranged bars or side rails 22 and23 together by end battens or rails 24 and 25. The side rails 22 and 23are provided with vertical elongated slots 25, which aline with eachother and through which project the ournal-bearings 2 an d 3, carried bythe frame-- section 1. In order that the drill-frame will be adjustablysupported with relation to the secondary frame, I provide parallelswinging and pivoted supporting-arms 26 and 27, which are pivoted neartheir upper extremities to the side rails 22 and 23. The arms 26 and 27can be rigidly fastened to the side rails, however, by mcansofthumb-screws or pins 28 their lower extremities and the shanks of whichextend into the side rails 22 and 23. These arms are formed intermediatetheir ends with cut-out portions or notches 30, which form hearings orseats for the reception of the tubular journal-bearings 2 and 3, carriedby the drill frame section 1. As these seats 30 are successivelyarranged along the length of the arms 26 and 27, the drillframe canreadily be adjusted vertically and the adjustment changed by removingthe pins or screws 28 and 29 and swinging the arms 26 and 27 in aposition similar to that shown in dotted lines in Fig. 2. WV hen theproper point of ad justmcnthas been reached,the arms will be swung backto snugly rest against the side rails 22 and 23, in which position theycan be secured by the pins or screws 28 and 29. As the seats 30 formsupplemental bearings for the reception of the tubular bearings 2 and 3,and owing to the fact that these tubular bearings are a part of thedrill-frame section 1, the entire drill-frame can be swung at any angleon a vertical radius to meet various requirements. Suflicient power willbe exerted upon the drill-rod 11 by the gears 6, 7, and 8, which areoperated through the medium of the cranks 31 and 32 on the shafts 4 and5. Alining openings 33 and 34. are formed in the respective end battens24and 25 of the secondary frame, the lower one, 34, of said openingspermitting the proper working of the bit and drill-rod in the trulyvertical operations thereof, while the upper opening, 33, is forreceiving suitable means, as a jack screw, for maintaining thesupporting-frame of the machine in rigid position. If it is desired todrill a hole on a horizontal plane, it is only necessary to swing thedrill-frame to the desired position and operate the cranks 31 and 32.

It will be obvious from the foregoing that the drill can be operated inpractically any position. I have described and illustrated what to me atthis time appears to be the very best means of accomplishing the desiredresult; but I reserve the right to make such changes and alterations asmay suggest themselves from time to time and fairly fall in the scope ofthe appended claims.

Having thus described the invention, what is claimed as new is- 1. In adrilling-machine, the combination with an outwardly and upwardlyswinging drill-frame having oppositely-disposed journals, of asupporting-frame provided with vertical side rails having slots thereinthrough which the journals project, and pivoted supporting-arms carriedby the side rails and formed with seats for the reception of thejournals of the drill-frame, the latter being constructed of twosections, one of which is pivoted to swing laterally independently ofthe other section.

2. In a drilling-machine, the combination with an outwardly and upwardlyswinging drill-frame having oppositely-disposed journals, asupporting-frame provided with slots through which the journals project,and pivoted devices on the drill-frame formed with seats for thereception of the journals, said drill-frame being constructed of twosections, one of which is pivoted to swing laterally independently ofthe other section.

3. In a drilling-machine, the combination of a supporting-frame havingoppositely-disposed slots therein, an outwardly and upwardly swingingdrill-frame having hollow journals projecting through the slots in thesupporting-frame, gear-carrying shafts in the said journals, a drill-rodactuated thereby, and means for securing said journals at determinatepoints of adjustment with relation to the sides of the slotin thesupporting-frame, said drill-frame being constructed of two sections,one of which is pivoted to swing laterally independently of the othersection.

4. In a drilling-machine, the combination with a drill-frame havingoppositely-disposed journals; of asupporting-frame provided withvertical side rails having slots therein through which the journalsproject, and pivoted supporting-arms carried by the side rails of thesupporting-frame and formed with seats for the reception of the journalsof the drill-frame.

5. In a drilling-machine, the combination with a drill-frame havingoppositely-disposed journals; of asupporting-frame provided with slotsthrough which the journals project, and pivoted devices carried by thedrill-frame and formed with seats for the reception of the journalswhich form pivots to permit the drillframe to swing in a vertical are.

6. In a drilling-machine, the combination with a supporting-frame havingoppositelydisposed slots therein; of a drill-frame, hollow In testimonywhereof I aifiX my signature in journals projecting through the slots inthe presence of two witnesses. supporting-frame, gear-carrying shafts inthe hollow journals, a drill-rod actuated thereby, WILLIAM HOLSTINE andmeans for securing the hollow journals at Witnesses:

determined points of adjustment with relation FRED HILL,

to the slots in the supporting-frame. J. A. NUTTER.

